筆不精
筆無精
Kanji
Readings: ヒツ、 ふで
Meanings: writing brush, writing, painting brush, handwriting
Readings: フ、 ブ
Meanings: negative, non-, bad, ugly, clumsy
Readings: セイ、 ショウ、 シヤウ
Meanings: refined, ghost, fairy, energy, vitality, semen, excellence, purity, skill
Readings: ム、 ブ、 な.い
Meanings: nothingness, none, ain't, nothing, nil, not